%%
%% The LaTeX Companion, 3ed
%%
%% Example 7-4-8 on page I-549 in "Extending the customization possibilities".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{159.0pt}
%
  \setlength\intextsep{8pt}

%StartShownPreambleCommands
\usepackage{caption,graphicx}
\DeclareCaptionStyle{italic}
  {labelfont={sf,sc},textfont={rm,it},indention=18pt,
   labelsep=period,justification=raggedright}
\captionsetup[figure]{style=italic}
\captionsetup{style=default,labelfont={sf,bf}}
%StopShownPreambleCommands

\begin{document}
\begin{figure}[ht]
  \centering
  \includegraphics{cat}
  \caption{A long caption that runs over more than
    one line to show the effect of the style key.}
\end{figure}
\begin{table}[ht]
  \centering
  \fbox{Let there be a table}
  \caption{A long caption that runs over more than
    one line to show the effect of the style key.}
\end{table}
\end{document}
